ITEM NAME:Wireless Alarm Lock Bicycle Bike Security Anti-Theft Remote Top System With N2O0 Description 100% brand new and high quality Material:ABS Size:9.5 x 6 x 3.8cm Alarm:.Alarm decibel: 105db. 1pc x Vibration Alarm (Battery is NOT included.). Work temperature: -15℃75℃. Quality is the first with best service.